This only works if the data transfer is 100% complete. If the download stopped at 99%, renaming the file will result in a corrupted file error.
Because DLM files are often plain text descriptions (as in IDL) or binary modules, the method to open them depends on your goal: dlm file
If the text editor shows non-human-readable symbols (e.g., ÿþMZê ), you have an engineering DLM. Do not edit this with a text editor. You must use software. Opening it incorrectly can corrupt the simulation link. This only works if the data transfer is 100% complete
Once the download reaches 100%, the software automatically renames the file to its final extension (like 3. IDL Dynamically Loadable Modules dlm file